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CN-224230621-U - Spiral hot air circulation device of three-dimensional dryer

CN224230621UCN 224230621 UCN224230621 UCN 224230621UCN-224230621-U

Abstract

The utility model belongs to the technical field of dryers, and discloses a spiral hot air circulation device of a three-dimensional dryer, which comprises a dryer outer cylinder, a heat pump system, a flow guide plate, a circulating pipe, a dehumidifying box and a heating box, wherein the dryer outer cylinder is internally provided with a dryer inner cylinder, the heat pump system is formed by connecting a compressor, a condenser, an expansion valve and an evaporator, the flow guide plate is arranged between the dryer inner cylinder and the dryer outer cylinder in a spiral mode around the dryer inner cylinder, a spiral ventilation cavity is formed between the dryer inner cylinder and the dryer outer cylinder, the circulating pipe is arranged between an air inlet pipe and an exhaust pipe, and the dehumidifying box and the heating box are sequentially arranged on the circulating pipe in series according to the passing sequence of gas. The utility model realizes hot air circulation by drying and dehumidifying the gas through the evaporator and then heating the gas on the condenser, and has better drying effect by drying the drying inner cylinder by using the dried hot air.

Inventors

  • LI PEIXIA

Assignees

  • 广州博泽机电自动化技术有限公司

Dates

Publication Date
20260512
Application Date
20250717

Claims (6)

  1. 1. A spiral hot air circulation device of a three-dimensional dryer comprises a dryer outer cylinder (2) with a dryer inner cylinder (1) inside, and a heat pump system formed by connecting a compressor (3), a condenser (4), an expansion valve and an evaporator (5), and is characterized in that a guide plate (6) which is spirally arranged around the dryer inner cylinder (1) is arranged between the dryer inner cylinder (1) and the dryer outer cylinder (2) so as to form a spiral ventilation cavity between the dryer inner cylinder (1) and the dryer outer cylinder (2), a plurality of ventilation holes (7) are formed in the dryer inner cylinder (1), an air inlet pipe (10) connected with the air inlet end of the spiral ventilation cavity is arranged in the dryer outer cylinder (2), an exhaust pipe (11) connected with the air outlet end of the spiral ventilation cavity is arranged in the dryer outer cylinder (2), a dehumidifying box (13) and a box (14) are sequentially arranged on the circulating pipe (12) in series according to the passing sequence of air, a heating box (13) and a heating box (14) are arranged on the dryer outer cylinder (2), the dehumidifying box (4) is arranged in the heating box (13), the circulating pipe (12) is provided with a fan (23).
  2. 2. The spiral hot air circulation device of the three-dimensional dryer of claim 1, wherein a stirring rod (15) is arranged in the drying inner cylinder (1), the stirring rod (15) drives materials to overturn in the drying inner cylinder (1), a feed inlet (16) is formed in the top of the drying inner cylinder (1), and an end cover (17) for closing the feed inlet (16) is arranged on the top of the drying inner cylinder (1).
  3. 3. The spiral hot air circulation device of the three-dimensional dryer according to claim 1, wherein the end part of the drain pipe (8) is provided with an upward U-shaped pipe (18).
  4. 4. The spiral hot air circulating device of the three-dimensional dryer of claim 1, wherein a first air humidity sensor (19) and an air outlet temperature sensor (20) are arranged in the exhaust pipe (11).
  5. 5. The spiral hot air circulation device of the three-dimensional dryer according to claim 1, wherein an air inlet temperature sensor (21) is arranged in the air inlet pipe (10), and a second air humidity sensor (22) is arranged at an air outlet of the dehumidifying box (13).
  6. 6. The spiral hot air circulation device of a three-dimensional dryer according to claim 1, wherein the dust filter cartridge (24) is installed on the air inlet pipe (10).

Description

Spiral hot air circulation device of three-dimensional dryer Technical Field The utility model relates to the technical field of dryer collection, in particular to a spiral hot air circulation device of a three-dimensional dryer. Background At present, the equipment for drying materials is a roller dryer, and tail gas of the roller dryer at high temperature and high humidity in the drying process is directly discharged, so that energy consumption is high, and the time of hot gas of the roller dryer in the roller dryer is long, so that drying efficiency is low. Disclosure of Invention In order to overcome the technical defects in the prior art, the utility model provides the spiral hot air circulation device of the three-dimensional dryer, which is characterized in that the evaporator is used for drying and dehumidifying gas and then the condenser is used for heating, so that hot air circulation is realized, and the energy consumption is low. The technical scheme includes that the spiral hot air circulation device of the three-dimensional dryer comprises a dryer outer cylinder, a heat pump system and a flow guide plate, wherein the dryer outer cylinder is internally provided with a dryer inner cylinder, the heat pump system is formed by connecting a compressor, a condenser, an expansion valve and an evaporator, the flow guide plate is arranged between the dryer inner cylinder and the dryer outer cylinder in a spiral mode around the dryer inner cylinder, a spiral ventilation cavity is formed between the dryer inner cylinder and the dryer outer cylinder, a plurality of ventilation holes are formed in the dryer inner cylinder, an air inlet pipe connected with an air inlet end of the spiral ventilation cavity is arranged on the dryer outer cylinder of the dryer inner cylinder, an exhaust pipe connected with an air outlet end of the spiral ventilation cavity is arranged on the dryer outer cylinder, a circulation pipe is arranged between the air inlet pipe and the exhaust pipe, a dehumidifying box and a heating box are sequentially arranged on the circulation pipe in sequence of passing through gas, a drain pipe is arranged on the dehumidifying box, the condenser is arranged in the heating box, and a fan is arranged on the circulation pipe. Preferably, a stirring rod is arranged in the drying inner cylinder, the stirring rod drives the material to overturn in the drying inner cylinder, a feed inlet is arranged at the top of the drying inner cylinder, and an end cover for closing the feed inlet is arranged at the top of the drying inner cylinder. Preferably, the end of the drain pipe is provided with an upward U-shaped pipe. Preferably, a first air humidity sensor and an air outlet temperature sensor are arranged in the exhaust pipe. Preferably, an air inlet temperature sensor is arranged in the air inlet pipe, and a second air humidity sensor is arranged at the air outlet of the dehumidifying box. Preferably, a dust filter cartridge is mounted on the air inlet pipe. The beneficial effects of the utility model are as follows: 1. The utility model forms a spiral ventilation channel between the drying inner cylinder and the drying outer cylinder by arranging the guide plate which is spirally arranged around the drying inner cylinder between the drying inner cylinder and the drying outer cylinder, thus increasing the time of the air of the drying hot air staying in the drying inner cylinder, improving the drying effect, wherein the air conditioner comprises a heat pump system formed by connecting a compressor, a condenser, an expansion valve and an evaporator, the gas is thus dried and dehumidified by the evaporator, and then heated on the condenser, thus achieving a heated air circulation, whereby the condenser and the evaporator are in one system, in this way, the utility model has the energy-saving effect in the process of dehumidifying and heating the gas, and the utility model utilizes the dry hot air to dry the drying inner cylinder, thereby having better drying effect. 2. The end part of the drain pipe is provided with the upward U-shaped pipe, so that condensed water has an automatic sealing effect on the U-shaped pipe under the action of the U-shaped pipe, and the integral tightness is not damaged. 3. The dust filter cartridge is arranged on the air inlet pipe, so that dust generated in the drying process can be filtered, and the dust is prevented from being adhered to the surface of the evaporator in a large amount, and the dehumidification effect of the evaporator is reduced. Drawings One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated. FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic view of a baffle according to the prese